Implementation of SN7497 different from data sheet

[Niko3]

This is an information to everybody who wants to use 7497 from the Quartus II libraries in the block editor.

I made a test circuit using in the block editor element 7497 from the library .../quartus/libraries/others/maxplus2, a programmable 6 bit frequency divider.

Logic symbol from data sheet:

Truth table from data sheet:

But my simulation showed a different behaviour:

With only one of the Bx inputs set to high the frequency division was

B0   1/64

B1   1/32

B2   1/16

B3   1/8

B4   1/4

B5   1/2

All Bx inputs high results in a division 1/1.

Combinations of two Bx inputs high result in strange pulse sequences.

I couldn't find a combination for division 1/40 like in the data sheet.

[Farabi]

Hello,

I am sorry, the SN7497 part number is not own by Intel. I would suggest to send your request to TI(Texas Instrument) tech support?

link to SN7497: https://www.ti.com/product/SN7497?keyMatch=SN7497&tisearch=search-everything&usecase=GPN

regards,

Farabi

[NazrulNaim_Intel]

Hi,

As we do not receive any response from you on the previous question/reply/answer that we have provided, for now I will set this case to Close-Pending. 

Regards,

Nazrul Naim